A (guerrilla army) can be formidable.Logical formLearned from2 sentences. A headmistress can be formidable.Logical formLearned from2 sentences. Businessmen can be formidable.Logical formLearned from2 sentences. A (piano technique) can be formidable.Logical formLearned from2 sentences. A ruckman can be formidable.Logical formLearned from2 sentences. Psychic powers can be formidable.Logical formLearned from2 sentences. A cannon can be formidable.Logical formLearned from2 sentences. Runners can be formidable.Logical formLearned from2 sentences. A defensive team can be formidable.Logical formLearned from2 sentences. A (loan shark) can be formidable.Logical formLearned from2 sentences. Cars can be formidable.Logical formLearned from2 sentences. Hazards can be formidable.Logical formLearned from2 sentences. Redoubts can be formidable.Logical formLearned from2 sentences. A lexicon can be formidable.Logical formLearned from2 sentences. A grandfather can be formidable.Logical formLearned from2 sentences.